Prenylated Curcumin Analogues as Multipotent Tools to Tackle Alzheimer's Disease

Federica Bisceglia, Francesca Seghetti, Massimo Serra, Morena Zusso, Silvia Gervasoni, Laura Verga, Giulio Vistoli, Cristina Lanni, Michele Catanzaro, Ersilia De Lorenzi, Federica Belluti

Research output: Contribution to journalArticle

Abstract

Alzheimer's disease is likely to be caused by copathogenic factors including aggregation of Aβ peptides into oligomers and fibrils, neuroinflammation, and oxidative stress. To date, no effective treatments are available, and because of the multifactorial nature of the disease, it emerges the need to act on different and simultaneous fronts. Despite the multiple biological activities ascribed to curcumin as neuroprotector, its poor bioavailability and toxicity limit the success in clinical outcomes. To tackle Alzheimer's disease on these aspects, the curcumin template was suitably modified and a small set of analogues was attained. In particular, derivative 1 turned out to be less toxic than curcumin. As evidenced by capillary electrophoresis and transmission electron microscopy studies, 1 proved to inhibit the formation of large toxic Aβ oligomers, by shifting the equilibrium toward smaller nontoxic assemblies and to limit the formation of insoluble fibrils. These findings were supported by molecular docking and steered molecular dynamics simulations which confirmed the superior capacity of 1 to bind Aβ structures of different complexity. Remarkably, 1 also showed in vitro anti-inflammatory and antioxidant properties. In summary, the curcumin-based analogue 1 emerged as multipotent compound worthy to be further investigated and exploited in the Alzheimer's disease multitarget context.

Original languageEnglish
JournalACS Chemical Neuroscience
DOIs
Publication statusAccepted/In press - Jan 1 2019

    Fingerprint

Keywords

  • Alzheimer's disease
  • amyloid beta oligomers and fibrils
  • capillary electrophoresis
  • curcumin analogues
  • neuroinflammation
  • oxidative stress

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Cognitive Neuroscience
  • Cell Biology

Cite this

Bisceglia, F., Seghetti, F., Serra, M., Zusso, M., Gervasoni, S., Verga, L., Vistoli, G., Lanni, C., Catanzaro, M., De Lorenzi, E., & Belluti, F. (Accepted/In press). Prenylated Curcumin Analogues as Multipotent Tools to Tackle Alzheimer's Disease. ACS Chemical Neuroscience. https://doi.org/10.1021/acschemneuro.8b00463